13 is related to 44 following a certain logic. Following the same logic, 15 is related to 50. To which of the following is 21 related, following the same logic?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 68.
13 is related to 44 → 13 × 3 + 5 = 39 + 5 = 44
15 is related to 50 → 15 × 3 + 5 = 45 + 5 = 50
Similarly, 21 is related to: → 21 × 3 + 5 = 63 + 5 = 68